9825220 has 12 divisors (see below), whose sum is σ = 20633004. Its totient is φ = 3930080.

The previous prime is 9825191. The next prime is 9825247. The reversal of 9825220 is 225289.

It can be written as a sum of positive squares in 2 ways, for example, as 1110916 + 8714304 = 1054^2 + 2952^2 .

It is a d-powerful number, because it can be written as 9⁵ + 8³ + 2 + 5¹⁰ + 2⁴ + 2⁴ + 0 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245611 + ... + 245650.

It is an arithmetic number, because the mean of its divisors is an integer number (1719417).

Almost surely, 2^9825220 is an apocalyptic number.

It is an amenable number.

9825220 is an abundant number, since it is smaller than the sum of its proper divisors (10807784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9825220 is a wasteful number, since it uses less digits than its factorization.

9825220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491270 (or 491268 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 9825220 is about 3134.5206970125. The cubic root of 9825220 is about 214.1809108672.

The spelling of 9825220 in words is "nine million, eight hundred twenty-five thousand, two hundred twenty".